Volatile storage tank waste gas circulating collection and recharging device

Abstract

The invention discloses a volatile storage tank waste gas circulating collection and recharging device which comprises a material storage assembly, a gas supply assembly, a gas supply assembly, a gas supply assembly, a gas supply assembly, a gas supply assembly, a gas supply assembly and a gas supply assembly, wherein the material storage assembly comprises a material storage tank provided with a feed port, a discharge port, a decompression port and a pressurization port; the pressurizing assembly comprises a pressurizing pump and a gas-liquid separation tank, the pressurizing pump is provided with a first input end, a second input end and a first output end, the first input end is connected with the pressure reducing valve, the second input end is used for being connected with a protective gas source, the gas-liquid separation tank is provided with a gas-liquid inlet, an exhaust port and a liquid discharge port, the gas-liquid inlet is connected with the first output end, and the exhaust port is connected with the pressurizing valve. According to the volatile storage tank waste gas circulating collection and supplement device, a booster pump and an air pressure separation tank in the pressurization assembly are connected with a pressure reduction opening and a pressurization opening correspondingly, when the internal pressure of the storage tank is too large, shielding gas in the storage tank is extracted to a gas-liquid separation tank for temporary storage, and when the internal pressure of the storage tank is too small, the extracted shielding gas is supplemented back into the storage tank; and the consumption of the shielding gas is reduced, so that the storage cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of volatile material storage, and in particular to a volatile storage tank waste gas circulation collection and replenishment device. Background Art

[0002] In industrial production activities, it is usually necessary to store some volatile materials. In order to reduce the volatilization of materials, isolate them from the outside air, prevent them from being contaminated during storage, and achieve safe storage, these volatile materials are usually stored in closed tanks. During the storage process, a certain amount of nitrogen or inert gas or other protective gas is filled into the tank to ensure the stability of the storage environment inside the tank.

[0003] Since the above-mentioned volatile substances need to be within a specific air pressure range to achieve stable storage, when the air pressure is too high, it is easy to exceed the pressure bearing capacity of the tank, causing the tank to rupture or leak, causing a safety accident. When the air pressure is too low, it will affect the stability of the volatile materials, and even in some cases, it will cause the material to evaporate faster, which also poses a safety hazard. Based on the above factors, during the actual storage process, it is necessary to monitor the air pressure inside the tank in a timely manner, and when the air pressure is too high, part of the protective gas will be released to the outside, and when the air pressure is too low, the protective gas will be input into the tank from the protective gas source. Although the above method can achieve stable storage of materials, when the air pressure is too high, the protective gas is directly discharged to the outside, resulting in an increase in the amount of protective gas drawn into the tank from the protective gas source as the use time increases, thereby increasing the storage cost.

[0004] Therefore, it is necessary to improve the storage device for volatile materials in the prior art. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects in the prior art and provide a volatile storage tank waste gas recycling collection and replenishment device that reduces the use of protective gas and reduces storage costs.

[0006] In order to achieve the above technical effects, the technical solution of the present invention is: a volatile storage tank waste gas recycling collection and replenishment device, comprising: A material storage component, the material storage component comprises a material storage tank, the material storage tank has a feed port, a discharge port, a pressure reducing port and a pressure increasing port connected to its inner cavity, the feed port, the discharge port, the pressure reducing port and the pressure increasing port are respectively connected to a feed valve, a discharge valve, a pressure reducing valve and a pressure increasing valve; A boosting component, the boosting component includes a boosting pump and a gas-liquid separation tank, the boosting pump has a first input end, a second input end and a first output end, the first input end is connected to the pressure reducing valve, the second input end is used to connect to a protective gas source, the gas-liquid separation tank has a gas-liquid inlet, an exhaust port and a drain port connected to its own inner cavity, the gas-liquid inlet is connected to the first output end, the exhaust port is connected to the boosting valve, and the drain port is connected to a drain valve.

[0007] Preferably, in order to limit the airflow direction during exhaust and gas transmission, the pressure reducing valve and the pressure increasing valve are both single call valves.

[0008] Preferably, in order to monitor the internal air pressure of the storage environment, the storage tank and / or the gas-liquid separation tank is provided with a barometer.

[0009] Preferably, in order to reduce storage pressure, at least two storage tanks are provided and connected in parallel.

[0010] Preferably, in order to achieve a consistent air pressure balance inside each storage tank, the pressure reducing ports of each storage tank are interconnected, and the pressure increasing ports are interconnected.

[0011] Preferably, in order to ensure that the pressure reducing ports of each storage tank are interconnected and the pressure increasing ports are interconnected, the storage tanks are distributed in a ring array and the axis of the distribution extends along the vertical direction, the storage assembly also includes a pressure increasing shell and a pressure reducing shell, the inner cavity of the pressure increasing shell is connected between the pressure increasing port and the exhaust port, and the inner cavity of the pressure reducing shell is connected between the pressure reducing port and the first input end.

[0012] Preferably, in order to facilitate the simultaneous storage of materials in each storage tank or the discharge of materials from the storage tank, the storage assembly also includes a feed shell and a discharge shell, the feed shell is connected to a feed input pipe, the feed valve is arranged on the feed input pipe, and the discharge shell is connected to a discharge output pipe, and the discharge valve is arranged on the discharge output pipe.

[0013] Preferably, in order to facilitate rapid exhaust and gas delivery, at least two booster assemblies are provided and are sequentially connected in series.

[0014] Preferably, in order to further facilitate rapid exhaust, in each boosting component, an auxiliary inlet is also provided on the gas-liquid separation tank, the auxiliary inlet is connected to the liquid storage tank, an auxiliary inlet valve is provided between the auxiliary inlet and the liquid storage tank, and the auxiliary inlet valve is a single call valve with its outlet facing the gas-liquid separation tank.

[0015] Preferably, in order to further facilitate rapid gas delivery, the boosting assembly includes a first boosting assembly, a second boosting assembly and a third boosting assembly which are connected in series in sequence, the first boosting assembly is connected to the pressure reducing port, the third boosting assembly is connected to the boosting port, the gas-liquid separation tank in the second boosting assembly has two exhaust ports, one of which is connected to the first input end of the boosting pump in the discharge side boosting assembly, and the other exhaust port is connected to the boosting port and an auxiliary outlet valve with an outlet facing the boosting port is arranged between the exhaust port and the boosting port, and the auxiliary outlet valve is a single call valve.

[0016] To sum up, compared with the prior art, the volatile storage tank waste gas recycling collection and replenishment device of the present invention is connected to the pressure reducing port and the pressure increasing port respectively through the boosting pump and the air pressure separation tank in the boosting assembly. When the internal pressure of the storage tank is too high, the protective gas in the storage tank is extracted and temporarily stored in the gas-liquid separation tank. When the internal pressure of the storage tank is too low, the extracted protective gas is replenished into the storage tank, thereby reducing the consumption of protective gas and thus reducing storage costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the first embodiment; Figure 2 yes Figure 1 A front view of Figure 3 is a schematic structural diagram of a second embodiment; Figure 4 is a schematic structural diagram of a material storage assembly according to a second embodiment; Figure 5 yes Figure 4 Explosion diagram of Figure 6 is a schematic structural diagram of a booster assembly according to a second embodiment; Figure 7 yes Figure 6 Explosion diagram of Figure 8 is a partial structural schematic diagram of a booster assembly according to a second embodiment; Fig. 9 yes Figure 8 Schematic diagram of some structures; In the figure: 1, storage assembly; 11, storage tank; 111, feed port; 112, discharge port; 113, pressure reducing port; 114, boost port; 115, feed pipe; 116, discharge pipe; 117, pressure reducing pipe; 1171, pressure reducing switch valve; 118, boost pipe; 1181, boost switch valve; 12, feed valve; 13, discharge valve; 14, pressure reducing valve; 15, boost valve; 16, boost shell; 161, boost input pipe; 17, pressure reducing shell; 171, pressure reducing output pipe; 172, pressure reducing switch valve; 18, feed shell; 181, feed input pipe; 19 , discharge shell; 191, discharge output pipe; 2, booster assembly; 21, booster pump; 211, first input end; 212, second input end; 213, first output end; 22, gas-liquid separation tank; 221, gas-liquid inlet; 222, exhaust port; 223, discharge port; 224, auxiliary inlet; 225, auxiliary inlet valve; 226, auxiliary outlet valve; 227, discharge valve; 228, safety valve; 23, protective air pipe; 231, protective switch valve; 24, booster output pipe; 241, output switch valve; 25, diverter pipe; 26, confluence pipe; 27, connecting pipe. DETAILED DESCRIPTION

[0018] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0019] First embodiment

[0020] like Figure 1 and Figure 2 As shown, the volatile storage tank exhaust gas recycling collection and replenishment device of the first embodiment of the present invention includes: A material storage component 1, comprising a material storage tank 11, wherein the material storage tank 11 has a feed port 111, a discharge port 112, a pressure reducing port 113 and a pressure increasing port 114 connected to its inner cavity, and the feed port 111, the discharge port 112, the pressure reducing port 113 and the pressure increasing port 114 are respectively connected to a feed valve 12, a discharge valve 13, a pressure reducing valve 14 and a pressure increasing valve 15; The boosting component 2 includes a boosting pump 21 and a gas-liquid separation tank 22. The boosting pump 21 has a first input end 211, a second input end 212 and a first output end 213. The first input end 211 is connected to the pressure reducing valve 14, and the second input end 212 is used to connect to the protective gas source. The gas-liquid separation tank 22 has a gas-liquid inlet 221, an exhaust port 222 and a drain port 223 connected to its own inner cavity. The gas-liquid inlet 221 is connected to the first output end 213, the exhaust port 222 is connected to the boosting valve 15, and the drain port 223 is connected to the drain valve 227; the exhaust port 222 and the boosting port 114 are connected through a boosting pipe 118, the boosting valve 15 is arranged on the boosting pipe 118, and the boosting pipe 118 is also provided with a boosting switch valve 1181.

[0021] When the volatile storage tank waste gas recycling collection and replenishment device of this embodiment is in use, the storage tank 11 in the storage component 1 is used to store volatile materials. Specifically, when in use, the feed valve 12 connected to the feed port 111 is opened, and the material is stored in the storage tank 11 through the feed port 111, and the feed valve 12 is closed; then, the boosting component 2 is started to deliver supplementary protective gas to the storage tank 11 to maintain a stable air pressure in the storage tank 11.

[0022] When the boosting assembly 2 is initially operated, the second input end 212 of the boosting pump 21 is used to connect to the protective gas source. The protective gas delivered by the protective gas source is usually nitrogen or an inert gas with stable chemical properties and not easy to react with the stored material. After being pressurized by the boosting pump 21, it is delivered to the gas-liquid separation tank 22 through the gas-liquid inlet 221 from the first output end 213. The gas-liquid separation tank 22 is used to separate the gas and liquid, so that the droplets are deposited at the bottom of the gas-liquid separation tank 22. The boosting switch valve 1181 is opened, and the protective gas is discharged through the exhaust port 222. After passing through the boosting pipe 118, it is delivered to the storage tank 11 from the boosting port 114 to increase the pressure in the storage tank 11. In this way, the protective gas provided by the protective gas source is extracted by the boosting pump 21, and after being separated by gas and liquid in the gas-liquid separation tank 22, the dry protective gas is delivered to the storage tank 11 to increase the gas pressure in the storage tank 11.

[0023] During the storage process, when the air pressure in the storage tank 11 is too high, the boost pump 21 is started to extract part of the air in the storage tank 11 through the first input end 211 to reduce the air pressure in the storage tank 11 to a safe storage pressure range, and part of the air extracted by the boost pump 21 is transported to the gas-liquid separation tank 22 through the gas-liquid inlet 221, and the boost switch valve 1181 is closed; when the air pressure in the storage tank 11 is too low, the boost switch valve 1181 is opened, so that part of the protective gas separated in the gas-liquid separation tank 22 is discharged through the exhaust port 222, and then transported by the boost pipe 118, and transported from the boost port 114 to the storage tank 11, and then the boost switch valve 1181 is closed.

[0024] When the material stored in the storage tank 11 needs to be used, the discharge valve 13 is opened to facilitate the discharge of the stored material from the discharge port 112 .

[0025] Therefore, in the device of this embodiment, during the material storage process, when the air pressure in the storage tank 11 is too high, excess protective gas is extracted through the booster pump 21 and transported to the gas-liquid separation tank 22 for temporary storage, so that after the air pressure in the storage tank 11 is reduced, the boost switch valve 1181 is opened and the gas is transported to the storage tank 11 through the booster pipe 118 for replenishment, thereby avoiding the waste of protective gas, thereby saving the use of protective gas during the storage process and reducing storage costs.

[0026] Specifically, in the present embodiment, the storage tank 11 is vertically arranged, the feed port 111, the pressure reducing port 113 and the boosting port 114 are all arranged at the top of the storage tank 11, the discharge port 112 is arranged at the bottom of the storage tank 11, the feed port 111, the discharge port 112 and the pressure reducing port 113 are respectively fixedly connected with the feed pipe 115, the discharge pipe 116 and the pressure reducing pipe 117; the booster pump 21 is a pneumatic booster pump 21, the first input end 211 of which is connected with the pressure reducing port 113, and the second input end 212 is connected with the protective air pipe 23, and the protective air pipe 23 is provided with a protective switch valve 231 to control the connection between the booster pump 21 and the protective air source. When it is necessary to supplement the protective air to the entire device, the protective switch valve 231 is opened to charge a certain amount of protective air. After the charging is completed, the protective switch valve 231 is closed to reduce the leakage of the protective air; the first output end 213 of the booster pump 21 and the gas-liquid separation tank 22 are connected to the gas-liquid separation tank 22. The inlets 221 are connected through a boost output pipe 24, and an output switch valve 241 is provided on the boost output pipe 24. The opening and closing of the output switch valve 241 controls the connection between the first output end 213 and the gas-liquid inlet 221; in the gas-liquid separation tank 22, the gas-liquid inlet 221 is arranged at the top of the side wall of the gas-liquid separation tank 22, and the drain port 223 is arranged at the bottom of the side wall of the gas-liquid separation tank 22. The drain port 223 is connected to a drain pipe, and a drain valve 227 is arranged on the drain pipe. When the device is operated for a long time, a large amount of liquid waste is accumulated at the bottom of the gas-liquid separation tank 22. At this time, the drain valve 227 is opened, and the accumulated liquid in the gas-liquid separation tank 22 can be discharged through the drain port 223. The exhaust port 222 is arranged at the top of the gas-liquid separation tank 22, and the protective gas after gas-liquid separation is conveniently discharged through the exhaust port 222 so that it can enter the storage tank 11 and maintain a stable air pressure in the storage tank 11.

[0027] A further improvement is that both the pressure reducing valve 14 and the pressure boosting valve 15 are single-call valves, and the inlet of the pressure reducing valve 14 is adjacent to the pressure reducing port 113, and the inlet of the pressure boosting valve 15 is adjacent to the exhaust port 222. The single-call valve is also called a check valve or a non-return valve, which is mainly used to control the flow direction of the fluid in the pipeline to ensure that the fluid can only flow in one direction to prevent it from flowing back, and has a compact structure, good sealing performance, and is easy to clean.

[0028] A further improvement is that the gas-liquid separation tank 22 is provided with a barometer 3. By providing the barometer 3, it is convenient to monitor the air pressure in the gas-liquid separation tank 22. A safety valve 228 is also provided on the top of the gas-liquid separation tank 22. By providing the safety valve 228, part of the protective gas can be discharged when the air pressure inside the gas-liquid separation tank 22 is too high, so as to ensure the safe storage of the protective gas in the gas-liquid separation tank 22.

[0029] Second embodiment

[0030] like Figure 3-Figure 9 As shown, the volatile storage tank exhaust gas recycling collection and replenishment device of the second embodiment of the present invention is based on the first embodiment, and the difference is that at least two storage tanks 11 are provided and connected in parallel.

[0031] In the material storage assembly 1, by setting up a plurality of material storage tanks 11 connected in parallel, they can jointly withstand high pressure, thereby preventing the material storage tank 11 from being subjected to high pressure alone and causing a shortened service life. In this embodiment, three material storage tanks 11 are horizontally arranged. Of course, according to actual production needs, the material storage tanks 11 can also be other multiple numbers.

[0032] A further improvement is that the pressure reducing ports 113 of the material storage tanks 11 are interconnected, and the pressure increasing ports 114 are interconnected.

[0033] Specifically, in the present embodiment, the pressure reducing port 113 and the pressure increasing port 114 are both arranged at the top of the storage tank 11, the feed port 111 is arranged at the top of the side wall of the storage tank 11, and the discharge port 112 is arranged at the bottom of the storage tank 11; the three storage tanks 11 are distributed in a circular array and the axis of distribution extends along the vertical direction, the storage assembly 1 also includes a pressure increasing shell 16 and a pressure reducing shell 17, the pressure increasing shell 16 and the pressure reducing shell 17 are both horizontal hollow structures, the inner cavity of the pressure increasing shell 16 is connected between the pressure increasing port 114 and the exhaust port 222, and the inner cavity of the pressure reducing shell 17 is connected between the pressure reducing port 113 and the first input end 211.

[0034] By adopting the above structure, the pressurization shell 16 is connected to the pressurization ports 114 of the three storage tanks 11, and the decompression shell 17 is connected to the decompression ports 113 of the three storage tanks 11, thereby realizing the mutual communication of the inner cavities of the three storage tanks 11, jointly bearing the gas pressure generated by the internal protective gas, and extending the service life. To be more specific, the top of the boosting shell 16 is fixedly connected with a boosting input pipe 161, the boosting valve 15 is arranged on the boosting input pipe 161, and the end of the boosting input pipe 161 away from the storage tank 11 is connected to the boosting component 2, so that the boosting component 2 can transport the pressurized protective gas to the three storage tanks 11 in sequence through the boosting input pipe 161 and the boosting shell 16, and a decompression output pipe 171 is arranged on the top of the decompression shell 17, the decompression valve 14 is arranged on the decompression output pipe 171, and the end of the decompression output pipe 171 away from the storage tank 11 is connected to the boosting component 2, so that when the internal pressure of the storage tank 11 is too high, the excess protective gas can be transported to the boosting component 2 through the decompression shell 17 and the decompression output pipe 171 for pressurization and temporary storage.

[0035] In order to facilitate monitoring of the air pressure in the storage tank 11 so as to timely discharge excess protective gas when the air pressure is too high and replenish some protective gas when the air pressure is too low, a barometer 3 is also provided on the top of the storage tank 11 to detect the internal air pressure of the storage tank 11.

[0036] A further improvement is that the material storage assembly 1 also includes a feed shell 18 and a discharge shell 19, the feed shell 18 is connected to a feed input pipe 181, the feed valve 12 is arranged on the feed input pipe 181, the discharge shell 19 is connected to a discharge output pipe 191, and the discharge valve 13 is arranged on the discharge output pipe 191.

[0037] The feed shell 18 and the discharge shell 19 are both horizontally arranged between the three storage tanks 11 and are both hollow structures. The inner cavity of the feed shell 18 is connected to the feed port 111 of the storage tank 11, and the inner cavity of the discharge shell 19 is connected to the discharge port 112 of the storage tank 11. In this way, after opening the feed valve 12, volatile materials are transported to the feed shell 18 to facilitate the materials to enter the three storage tanks 11 through the feed shell 18, and then the feed valve 12 is closed to complete the storage of materials. When the materials need to be taken, the discharge valve 13 is opened, and the materials in the three storage tanks 11 flow out from the discharge port 112, and then flow out from the discharge output pipe 191 through the discharge shell 19, thereby realizing the discharge of materials.

[0038] A further improvement is that at least two boosting assemblies 2 are provided and connected in series.

[0039] After adopting the above design, the number of boosting components 2 is increased, thereby increasing the protective gas capacity that can be stored in the gas-liquid separation tank 22 in the boosting component 2. Moreover, since the boosting components 2 are connected in series in sequence, the air pressure inside the gas-liquid separation tank 22 in the boosting component 2 gradually increases with the flow of protective gas. That is, the closer the boosting component 2 is to the pressure reducing port 113, the smaller the air pressure inside the gas-liquid separation tank 22. Correspondingly, the closer the boosting component 2 is to the pressure increasing port 114, the greater the air pressure inside the gas-liquid separation tank 22. Therefore, when the air pressure in the storage tank 11 in the storage component 1 is too high, the protective gas first flows to and passes into the gas-liquid separation tank 22 adjacent thereto, and the gas-liquid separation tank 2 2 is small, so that after the boost pump 21 is started, there is enough pressure difference between the gas-liquid separation tank 22 and the storage tank 11, which is convenient for the gas-liquid separation tank 22 to quickly pass into the gas-liquid separation tank 22 with smaller internal air pressure. Correspondingly, when the air pressure in the storage tank 11 in the storage component 1 is too small, in the boost component 2 which is closer to the boost port 114 of the storage tank 11 of the storage component 1, since the internal air pressure of the gas-liquid separation tank 22 in the boost component 2 is large enough, after the boost switch valve 1181 is opened, a sufficient pressure difference is formed between the interior of the gas-liquid separation tank 22 and the storage tank 11, so that the high-pressure protective gas in the gas-liquid separation tank 22 can be quickly filled and replenished into the storage tank 11 through the boost shell 16.

[0040] Therefore, after adopting the above design, a multi-stage increasing high-pressure protective gas temporary storage device is formed through multiple boosting components 2, so that the storage tank 11 can be conveniently subjected to rapid pressurization and decompression processing, thereby improving the response rate.

[0041] In this embodiment, the number of the boosting components 2 is set to six. Of course, according to actual conditions, the number of the boosting components 2 can also be other multiple numbers.

[0042] A further improvement is that in each boosting component 2, an auxiliary inlet 224 is also provided on the gas-liquid separation tank 22, the auxiliary inlet 224 is connected to the liquid storage tank, an auxiliary inlet valve 225 is provided between the auxiliary inlet 224 and the liquid storage tank, and the auxiliary inlet valve 225 is a single call valve with its outlet facing the gas-liquid separation tank 22.

[0043] Specifically, the auxiliary inlet 224 is arranged at the top of the gas-liquid separation tank 22, and the boosting component 2 also includes a diverter pipe 25, which has an input end and seven output ends. The input end of the diverter pipe 25 is connected to the pressure reducing shell 17 through the pressure reducing valve 14. Among the output ends of the diverter pipe 25, one of the output ends is fixedly connected to the first input end 211 of the boosting pump 21 in the intake end boosting component 2, and the other six output ends are respectively connected to the auxiliary inlets 224 of the six gas-liquid separation tanks 22 in a one-to-one correspondence, and an auxiliary inlet valve 225 is arranged between the output end and the auxiliary inlet 224, and the outlet of the auxiliary inlet valve 225 faces the gas-liquid separation tank 22.

[0044] After adopting the above structure, six one-way flow channels are formed through the shunt pipe 25 and the six auxiliary inlet valves 225 on the shunt pipe 25. After the internal air pressure of the storage tank 11 is too high and the pressure reducing switch valve 1171 is opened, the protective gas in the storage tank 11 can pass through the above six one-way flow channels and rely on the difference in internal pressure between the storage tank 11 and the gas-liquid separation tank 22 to enter the corresponding gas-liquid separation tank 22, and the protective gas merged in the pressure reducing shell 17 is quickly discharged into multiple gas-liquid separation tanks 22 to achieve rapid pressure reduction of the storage tank 11.

[0045] A further improvement is that the boosting assembly 2 includes a first boosting assembly 2, a second boosting assembly 2 and a third boosting assembly 2 which are connected in series in sequence, the first boosting assembly 2 is connected to the pressure reducing port 113, the third boosting assembly 2 is connected to the boosting port 114, and the gas-liquid separation tank 22 in the second boosting assembly 2 has two exhaust ports 222, one of which is connected to the first input end 211 of the boosting pump 21 in the discharge side boosting assembly 2, and the other exhaust port 222 is connected to the boosting port 114 and an auxiliary outlet valve 226 with its outlet facing the boosting port 114 is arranged between the exhaust port 222 and the boosting port 114, and the auxiliary outlet valve 226 is a single call valve.

[0046] Specifically, in this embodiment, the six boosting components 2 include three first boosting components 2, two second boosting components 2 and one third boosting component 2 connected in series in sequence, wherein in the first boosting component 2 far away from the material storage component 1, the exhaust port 222 of the gas-liquid separation tank 22 is fixedly connected to the first input end 211 of the boosting pump 21 in the second boosting component 2 far away from the third boosting component 2 through the connecting pipe 27, and in the two second boosting components 2, one of the exhaust ports 222 is arranged at the top of the gas-liquid separation tank 22, and the other is arranged at the gas-liquid separation tank 2 2, the exhaust port 222 is connected to the auxiliary outlet valve 226, the exhaust port 222 is provided on the top of the side wall of the gas-liquid separation tank 22 of the third boosting component 2, the exhaust port 222 is connected to the boosting valve 15, the boosting component 2 also includes a confluence pipe 26, the confluence pipe 26 has three input ends and one output end, the three input ends of the confluence pipe 26 are respectively connected to the outlet of the above-mentioned boosting valve 15 and the outlets of the two auxiliary outlet valves 226, the output end is connected to the inlet of the boosting switch valve 1181, and the outlet of the boosting switch valve 1181 is connected to the boosting shell 16.

[0047] After adopting the above structure, when the pressure inside the storage tank 11 is too low, the boost switch valve 1181 is opened. In addition to the high-pressure protective gas in the gas-liquid separation tank 22 in the third boost component 2 being able to rely on the pressure difference to enter the boost shell 16 through the boost valve 15 and the confluence pipe 26, the protective gas in the gas-liquid separation tanks 22 in the two second boost components 2 is in a high-pressure state. Relying on the pressure difference between the gas-liquid separation tanks 22 and the storage tank 11, the high-pressure protective gas in the above two gas-liquid separation tanks 22 can pass through the gas-liquid separation tanks 2 in turn. The gas is discharged from the exhaust port 222 at the top of the side wall 2, passes through the auxiliary outlet valve 226, enters from the two input ends of the confluence pipe 26, enters the booster shell 16 through the confluence pipe 26, merges with the high-pressure protective gas input from the third booster assembly 2, and then is diverted to the three storage tanks 11. In this way, the high-pressure protective gas can be simultaneously input to the three storage tanks 11 in a short time by relying on the pressure difference, so as to quickly increase the internal air pressure of the storage tank 11 and ensure the safe storage of the volatile substances in the storage tank 11.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A volatile storage tank waste gas recycling collection and replenishment device, characterized in that: include: A material storage component (1), the material storage component (1) comprising a material storage tank (11), the material storage tank (11) having a feed port (111), a discharge port (112), a pressure reducing port (113) and a pressure increasing port (114) which are communicated with an inner cavity thereof, the feed port (111), the discharge port (112), the pressure reducing port (113) and the pressure increasing port (114) being respectively connected to a feed valve (12), a discharge valve (13), a pressure reducing valve (14) and a pressure increasing valve (15); A boosting assembly (2), the boosting assembly (2) comprising a boosting pump (21) and a gas-liquid separation tank (22), the boosting pump (21) having a first input end (211), a second input end (212) and a first output end (213), the first input end (211) being connected to the pressure reducing valve (14), the second input end (212) being used to connect to a protective gas source, the gas-liquid separation tank (22) having a gas-liquid inlet (221) communicating with its inner cavity, an exhaust port (222) and a liquid discharge port (223), the gas-liquid inlet (221) being connected to the first output end (213), the exhaust port (222) being connected to the boosting valve (15), and the liquid discharge port (223) being connected to a liquid discharge valve (227).

2. The volatile storage tank waste gas recycling collection and replenishment device according to claim 1 is characterized in that: The pressure reducing valve (14) and the pressure boosting valve (15) are both single-call valves.

3. The volatile storage tank waste gas recycling collection and replenishment device according to claim 1 is characterized in that: The material storage tank (11) and / or the gas-liquid separation tank (22) is provided with a barometer (3).

4. The volatile storage tank waste gas recycling collection and replenishment device according to claim 1 is characterized in that: At least two storage tanks (11) are provided and connected in parallel.

5. The volatile storage tank waste gas recycling collection and replenishment device according to claim 1 is characterized in that: The pressure reducing ports (113) of the material storage tanks (11) are interconnected, and the pressure increasing ports (114) are interconnected.

6. The volatile storage tank waste gas recycling collection and replenishment device according to claim 1 is characterized by: The material storage tanks (11) are distributed in a ring array and their axis lines extend in a vertical direction. The material storage assembly (1) further comprises a pressurizing shell (16) and a decompression shell (17). The inner cavity of the pressurizing shell (16) is connected between the pressurizing port (114) and the exhaust port (222), and the inner cavity of the decompression shell (17) is connected between the decompression port (113) and the first input end (211).

7. The volatile storage tank waste gas recycling collection and replenishment device according to claim 1 is characterized in that: The material storage assembly (1) further comprises a feed shell (18) and a discharge shell (19); the feed shell (18) is connected to a feed input pipe (181); the feed valve (12) is arranged on the feed input pipe (181); the discharge shell (19) is connected to a discharge output pipe (191); the discharge valve (13) is arranged on the discharge output pipe (191).

8. The volatile storage tank waste gas recycling collection and replenishment device according to claim 1 is characterized in that: The boosting components (2) are provided with at least two and are sequentially connected in series.

9. The volatile storage tank waste gas recycling collection and replenishment device according to claim 1 is characterized by: In each booster assembly (2), the gas-liquid separation tank (22) is further provided with an auxiliary inlet (224), the auxiliary inlet (224) being in communication with the liquid storage tank, an auxiliary inlet valve (225) being provided between the auxiliary inlet (224) and the liquid storage tank, the auxiliary inlet valve (225) being a single call valve with an outlet facing the gas-liquid separation tank (22).

10. The volatile storage tank waste gas recycling collection and replenishment device according to claim 1 is characterized in that: The boosting assembly (2) comprises a first boosting assembly (2), a second boosting assembly (2) and a third boosting assembly (2) which are connected in series in sequence, the first boosting assembly (2) being connected to the pressure reducing port (113), the third boosting assembly (2) being connected to the boosting port (114), the gas-liquid separation tank (22) in the second boosting assembly (2) having two exhaust ports (222), one of the exhaust ports (222) being in communication with a first input end (211) of a boosting pump (21) in a discharge-side boosting assembly (2), the other exhaust port (222) being in communication with the boosting port (114) and an auxiliary outlet valve (226) with an outlet facing the boosting port (114) being provided between the exhaust port (222) and the boosting port (114), the auxiliary outlet valve (226) being a single-call valve.

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